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Anthropic introduces Claude Opus 4.8 with faster mode and browser-use benchmark claim · News · Kaino
Anthropic introduces Claude Opus 4.8 with faster mode and browser-use benchmark claim
Kaino
May 30May 30, 2026, 12:00 AM4 views

Anthropic introduces Claude Opus 4.8 with faster mode and browser-use benchmark claim

Anthropic says Claude Opus 4.8 is now available at the same regular price as Opus 4.7, adding a 2.5x fast mode, dynamic workflows, and an 84% Online-Mind2Web computer-use score reported by Browserbase.

llmsclaudeopusreviewcomputerAnthropicClaudeClaude Opus 4.8LLMsAI benchmarksbrowser agents

Anthropic introduced Claude Opus 4.8 on May 28, 2026, positioning the model as an update to its Opus line with faster operation and stronger browser-agent performance.

What Anthropic announced

In its announcement, Anthropic says Claude Opus 4.8 is available “today” and remains at the same regular price as Claude Opus 4.7. The company also describes a 2.5x fast mode, support for dynamic workflows, and a reported 84% score on Online-Mind2Web for computer use, citing Browserbase for that benchmark result.

Anthropic’s Claude Opus product page also lists the May 28, 2026 Opus 4.8 announcement and repeats the 84% Online-Mind2Web browser-agent claim. Based on the provided source excerpts, Anthropic is presenting Opus 4.8 less as a price change and more as a capability and speed update within the existing Opus tier.

Pricing and model details

A hands-on catalog and review from ThePlanetTools.ai, updated May 30, 2026, says Claude Opus 4.8 launched with the API model name claude-opus-4-8. The same review lists regular pricing at $5 per million input tokens and $25 per million output tokens, with Fast Mode pricing at $10 per million input tokens and $50 per million output tokens.

Those exact dollar figures come from ThePlanetTools.ai’s review. Anthropic’s announcement excerpt confirms that regular pricing is unchanged from Opus 4.7, but the provided official excerpt does not itself list the dollar amounts.

Why the benchmark matters

The most specific performance claim in the available sources is the 84% Online-Mind2Web result. Anthropic attributes the score to Browserbase and frames it around computer use, while ThePlanetTools.ai also highlights the same figure in its review.

Online-Mind2Web is relevant because browser-agent tasks are a practical test of whether a model can navigate web-based workflows, not just generate text. Still, the available excerpts do not provide methodology details, comparison tables, or independent replication data. That means the 84% figure should be read as a reported benchmark claim rather than a complete performance assessment.

Review reception

ThePlanetTools.ai gives Claude Opus 4.8 a 9.5/10 rating in its May 30 review. The review’s headline emphasizes the combination of an 84% computer-use result and unchanged regular pricing. As with the pricing details, that score is from ThePlanetTools.ai’s own catalog and review rather than Anthropic’s official announcement.

Bottom line

Based on Anthropic’s announcement and product page, Claude Opus 4.8 is a newly available Opus release focused on faster operation, dynamic workflows, and browser-agent performance. ThePlanetTools.ai adds practical details including the reported API model name, listed token pricing, Fast Mode pricing, and a high review score.

The key confirmed points from the provided sources are that Anthropic announced Opus 4.8 on May 28, 2026; Anthropic says regular pricing remains the same as Opus 4.7; and both Anthropic’s materials and ThePlanetTools.ai cite an 84% Online-Mind2Web computer-use score associated with Browserbase.

Key takeaways
  • 1

    Anthropic introduced Claude Opus 4.8 on May 28, 2026, positioning the model as an update to its Opus line with faster operation and stronger browser agent performance.

  • 2

    What Anthropic announced In its announcement, Anthropic says Claude Opus 4.8 is available “today” and remains at the same regular price as Claude Opus 4.7.

  • 3

    The company also describes a 2.5x fast mode , support for dynamic workflows , and a reported 84% score on Online Mind2Web for computer use, citing Browserbase for that benchmark result.

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May 30

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Sources

Reference material and original reporting used in this story.

ThePlanetTools.ai

Published May 30, 2026, 12:00 AM

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